Question

Le 3125 = 50 = (5)
fy the following, using the laws of e
2 X 54 (-3)3 * (-3) (iii
(vii
293 (vi) (-28)
< (5)* = 52 + 4 = 56 = 15625
X (-3)5= (-3)3 + 5 = (-3)3 = (-1​

Answer 1

Step-by-step explanation:

Hey mate!

Here's your answer!!

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Using the identity,

If a+b+c = 0, then a³+b³+c³-3abc = 0

Let a = 55, b = -25, c = 30

a + b + c

= 55 + (-25) + (-30)

= 55 - 25 - 30

= 0

Thus, a + b + c = 0

Hence,

a³ + b³ + c³ - 3abc = 0

a³ + b³ + c³ = 3abc

55³ + (-25)³ + (-30)³

= 3 × 55 × (-25) × (-30)

= 123750

Therefore, 55³+(-25)³+(-30)³ = 123750

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